Nightlife is a collective term for entertainment that is available and generally more popular from the late evening into the early hours of the morning.It may include pubs, bars, nightclubs, parties, live music, concerts, cabarets, theatre, cinemas, shows, and some restaurants. Nightlife entertainment is often more adult-oriented than daytime entertainment. People who prefer to be active during the night-time are called night owls.

Nightlife has been a vibrant area of research for sociologists. Nightlife establishments including pubs, bars, restaurants and nightclubs function as third places, according to Ray Oldenburg in The Great Good Place.